Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Observed and Forecast Precipitation for east Tennessee, southwest Virginia, and extreme southwest North Carolina

Observed Precipitation (Ground Truth):

Daily TVA Lake Basins Rainfall Information

National Daily Precipitation Totals (radar estimated)

Precipitation Forecasts:

Day 1 U.S. precipitation forecast [12Z to 12Z forecast = today/tonight] [00Z to 00Z forecast = tonight/tomorrow]

Day 2 U.S. precipitation forecast [12Z to 12Z forecast = tomorrow/tomorrow night] [00Z to 00Z forecast = tomorrow night/day after tomorrow]

Day 3 U.S. precipitation forecast [12Z to 12Z forecast = day after tomorrow/night after tomorrow night] [00Z to 00Z forecast = night after tomorrow night/two days after tomorrow]

Local Radar